Patch "iio: proximity: sx9500: Assign interrupt from GpioIo()" has been added to the 4.14-stable tree

[<gregkh@linuxfoundation.org>]

This is a note to let you know that I've just added the patch titled

    iio: proximity: sx9500: Assign interrupt from GpioIo()

to the 4.14-stable tree which can be found at:
    http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary

The filename of the patch is:
     iio-proximity-sx9500-assign-interrupt-from-gpioio.patch
and it can be found in the queue-4.14 subdirectory.

If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@vger.kernel.org> know about it.


>From foo@baz Fri Feb 23 11:45:09 CET 2018
From: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Date: Fri, 3 Nov 2017 15:03:36 +0200
Subject: iio: proximity: sx9500: Assign interrupt from GpioIo()

From: Andy Shevchenko <andriy.shevchenko@linux.intel.com>


[ Upstream commit e53111ad5deaef98d8c18a9933ef1f5624c5979d ]

The commit 0f0796509c07

("iio: remove gpio interrupt probing from drivers that use a single interrupt")

removed custom IRQ assignment for the drivers which are enumerated via
ACPI or OF. Unfortunately, some ACPI tables have IRQ line defined as
GpioIo() resource and thus automatic IRQ allocation will fail.

Partially revert the commit 0f0796509c07 to restore original behaviour.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Acked-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Signed-off-by: Sasha Levin <alexander.levin@verizon.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/iio/proximity/sx9500.c |    9 +++++++++
 1 file changed, 9 insertions(+)

--- a/drivers/iio/proximity/sx9500.c
+++ b/drivers/iio/proximity/sx9500.c
@@ -871,6 +871,7 @@ static int sx9500_init_device(struct iio
 static void sx9500_gpio_probe(struct i2c_client *client,
 			      struct sx9500_data *data)
 {
+	struct gpio_desc *gpiod_int;
 	struct device *dev;
 
 	if (!client)
@@ -878,6 +879,14 @@ static void sx9500_gpio_probe(struct i2c
 
 	dev = &client->dev;
 
+	if (client->irq <= 0) {
+		gpiod_int = devm_gpiod_get(dev, SX9500_GPIO_INT, GPIOD_IN);
+		if (IS_ERR(gpiod_int))
+			dev_err(dev, "gpio get irq failed\n");
+		else
+			client->irq = gpiod_to_irq(gpiod_int);
+	}
+
 	data->gpiod_rst = devm_gpiod_get(dev, SX9500_GPIO_RESET, GPIOD_OUT_HIGH);
 	if (IS_ERR(data->gpiod_rst)) {
 		dev_warn(dev, "gpio get reset pin failed\n");


Patches currently in stable-queue which might be from andriy.shevchenko@linux.intel.com are

queue-4.14/pinctrl-denverton-fix-uart2-rts-pin-mode.patch
queue-4.14/iio-proximity-sx9500-assign-interrupt-from-gpioio.patch
queue-4.14/brcmfmac-avoid-build-error-with-make-w-1.patch